加热炉余热回收技术综述

加热炉是炼油企业的主要耗能设备,采用烟气余热回收技术可以大幅降低加热炉排烟温度,提高加热炉热效率,对于炼油企业降本增效具有重要意义。从技术原理、技术特点、适用范围、节能效果等多方面,分析了目前炼油企业加热炉上常用的几种烟气余热回收技术：管式空气预热器、热管式空气预热器、水热媒空气预热器、管式—水热媒组合式空气预热器、板式空气预热器以及余热锅炉等。指出应根据生产实际的需要、节能效果分析等,针对不同排烟温度的加热炉采用不同的余热回收技术。

Summary of the Waste Heat Recovery Technology for the Process Heater

The process heater is the main energy consumption equipment in refining enterprises.The exhaust temperature of the flue gas could be significantly reduced by means of the waste heat recovery technology,thus the heat efficiency was improved,which had the important meaning for reducing costs and improving efficiency in refining enterprises.The common waste heat recovery technologies for the process heater,including the tubular air preheater,heat pipe type air preheater,air preheater by heat medium water,tubul...